Isingeniso se-vertical cavity surfavity enikeza i-semiconductor laser (VCSEL)

ISINGENISO SOKUVULA KOKUVULA okukhiphaI-Semiconductor Laser(Vcsel)
Ama-lasertical wangaphandle we-cavity ama-lasers akhishwe emaphakathi nawo-1990s ukunqoba inkinga esemqoka ebiyele ukuthuthukiswa kwama-laser we-semiconductor: ukuthi ungakukhiqiza kanjani imiphumela ephezulu ye-laser nge-FETE LEAM CONTER ngemodi ephakeme edlulayo.
Ama-Lasers akhipha amanzi amile angaphandle (ama-vecsels), abizwa nangokuthiAma-Semiconductor Disc Lasers(SDL), iyilungu elisha lomndeni waseLaser. Ingakwazi ukuklama i-emission wavelength ngokushintsha ukwakheka okubonakalayo nobukhulu be-quantum kahle ku-semicenctor kufinyelela okuphezulu, kufinyelelwe okuphezulu kwe-waventhth kusuka ku-ultraviolet ephezulu lapho ugcina i-divergence angle eyindilinga ye-laser ye-laser. Umthengisi we-laser wakhiwa ngesakhiwo se-DBR esephansi se-chip inzuzo kanye nesibuko sokuhlangana sangaphandle. Lesi sakhiwo esihlukile sangaphandle sangaphandle sivumela izinto ezibonakalayo ukuthi zifakwe emgodini wokusebenza okufana nokuphindaphindeka okuphindaphindwayo, umehluko wemvamisa, kanye nemodi-ekhiya, ukwenza i-vecsel ibe yinto efanelekileumthombo we-laserNgezicelo ezisukela kuma-biophotonics, i-spectroscopy,Umuthi we-Laser, nokuqagela kwe-laser.
Umthengisi we-vc-surfaviture seconductor laser endizeni lapho isifunda esisebenzayo sitholakala khona, futhi ukukhanya kwalo kuvela ku-Fice.vcsen, ikhwalithi enkulu yomonakalo, ikhwalithi enkulu yokulimala komhlaba, nenqubo elula yokulimala komhlaba. Kubonisa ukusebenza okuhle kakhulu ekusetshenzisweni kwesibonisi se-laser, ukuxhumana kwe-Optical kanye newashi le-optical. Kodwa-ke, ama-vcsel awakwazi ukuthola ama-lasers aphezulu aphezulu ngaphezu kweleveli ye-watt, ngakho-ke awakwazi ukusetshenziswa emikhakheni enezidingo zamandla aphezulu.

Umthengisi we-laser we-vcsel wakhiwa nge-bragg ekhombisa ukusatshalaliswa (i-DBR) eyenziwe ngesakhiwo se-Epitaxic esibanzi sama-semiconductor ezinhlangothini zombili nezingaphansi zesifunda esisebenzayo, esihlukile kakhulu kui-laserI-resonator eyakhiwe ngendiza ye-cleavage eel. Ukuqondiswa kwe-vcsel optical resonator kuyinto perpendicular kuya endaweni ye-chip, okuphumayo kwe-laser nakho kungukuthi i-perpendicular eya endaweni ye-chip, kanye nokuvezwa kwezinhlangothi zombili ze-DBR ziphakeme kakhulu kunalezo zendiza yesisombululo se-eel.
Ubude be-laser resonator ye-vcsel ngokuvamile yi-microns embalwa, emincane kakhulu kunaleso somholi we-eel we-eel, futhi inzuzo yendlela eyodwa etholwe yi-oscillation yensimu ye-optical emgodini iphansi. Yize kukhishwa okuyisisekelo kwemodi yokushintshana, kungatholakala amandla okukhishwayo, amandla okukhipha angafinyelela kuma-milliwatts amaningana kuphela. Iphrofayili yesigaba sesigaba sokukhipha i-VCSEL STOPPOT laser iliyiyingi, futhi i-engela ye-divergence incane kakhulu kunaleyo yogongolo lwe-laser olukhipha. Ukuthola ukuphuma kwamandla okuphezulu kwe-VCSEL, kuyadingeka ukwandisa isifunda esikhanyayo ukuze kunikeze inzuzo ethe xaxa, futhi ukwanda kwesifunda esikhanyayo kuzodala ukuthi i-Laser ye-MultiP ibe yindlela ephumayo yemodi ehlukahlukene. Ngasikhathi sinye, kunzima ukufezekisa umjovo wamanje wamanje esifundeni esikhulu esikhanyayo, futhi umjovo ongalingani wamanje uzokhulisa imodi yokucisha imfucumfucu. Kepha amandla okuphuma aphansi lapho kuphuma imodi eyodwa.